133715737 has 4 divisors (see below), whose sum is σ = 133828276. Its totient is φ = 133603200.

The previous prime is 133715689. The next prime is 133715759. The reversal of 133715737 is 737517331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 737517331 = 4957 ⋅148783.

It can be written as a sum of positive squares in 2 ways, for example, as 16556761 + 117158976 = 4069^2 + 10824^2 .

It is a cyclic number.

It is not a de Polignac number, because 133715737 - 2⁷ = 133715609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133715696 and 133715705.

It is not an unprimeable number, because it can be changed into a prime (133715137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54468 + ... + 56869.

It is an arithmetic number, because the mean of its divisors is an integer number (33457069).

Almost surely, 2^133715737 is an apocalyptic number.

It is an amenable number.

133715737 is a deficient number, since it is larger than the sum of its proper divisors (112539).

133715737 is a wasteful number, since it uses less digits than its factorization.

133715737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112538.

The product of its digits is 46305, while the sum is 37.

The square root of 133715737 is about 11563.5520926746. The cubic root of 133715737 is about 511.3608879853.

The spelling of 133715737 in words is "one hundred thirty-three million, seven hundred fifteen thousand, seven hundred thirty-seven".